code: def get_gcb_config(gcb_config, layer):
      if gcb_config is None or not gcb_config["layers"][layer]:
          return None
      else:
          return gcb_config
  
file_path: PaddleOCR/ppocr/modeling/backbones/table_master_resnet.py
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
label_desc: Use image node_id 1 for calling a global function with example usage: get_gcb_config(gcb_config, layer) and returns: None, gcb_config